Foursquare sheet trimming machine



Nov. 16, 1943. w. G. PLUMB FOUR-SQUARE SHEET TRIMMING MACHINE Filed April 7, 1942 18 Sheets-Sheet 1 lira/r01? l 9 WW5 12W? flrrazwnsva 1s Shets-Sheet 2 Filed April 7, 1942 Nov. 16, 1943. w. G. PLUMB FOUR-SQUARE SHEET TRIMMING MACHINE I 18 Sheets-Sheet 3 Filed April 7, 1942 Nov. 16, 1943. w. cs. PLUMB FOUR-SQUARE SHEET TRIMMING MACHINE Filed April 7. 1942 l8 Sheets-Sheet 4 W. G. PLUMB FOUR -S QUARE SHEET TRIMMING MACHINE Filed April '7, 1942- 18 Sheets-$heet 5 WQRW EIEIE'EIEIEIEIET fil'ililililililililfl Nov. 16, 1943.

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Nov. 16, 1943.

Filed April '7, 1942 18 Sheets-Sheet 6 M Z 35 W //z/////// f? Wm; M

Nov. 16, 1943. w. G. PLuMB 2,334,545.

FOUR-SQUARE SHEET TRIMMING MACHINE I Filed April 7, 1942 18 Sheets-Sheet 7 Jh yavrw? 1 Nov. 16, 1943. w. G. PLUMB 2,334,545

FOUR-SQUARE SHEET TRIMMING MACHINE Filed April 7, 1942 18 Sheets-Sheet 8 a E [hoard r0 4270 Ext 5Y6 Nov. 16, 1943.

W. G. PLUMB FOUR-SQUARE SHEET TRIMMING MACHINE Filed April '7, 1942 18 Sheets-Sheet 9 F Zia" Z1 Nov. 16, 1943. w. G.- PLUMB 2,334,645

FOUR-SQUARE SHEET TRIMMING MACHINE Filed April '7, 1942 18 Sheets-Sheet 1O Ml, 9% M Nov. 16, 1943. w. s. PLUMB FOUR-SQUARE SHEET TRIMMING MACHINE Filed April 7, 1942 18 Sheets-Sheet 11 Nov. 16, 1943. w. G. PLUMB FOUR-SQUARE SHEET TRIMMING MACHINE Filed April 7, 1 4 18 Sheets-Sheet 12 Nov. 16, 1943. w. G. PLUMB TRIMMING MACHINE FOUR-SQUARE SHEET Filed April 7, 1942 18 Sheets-Sheet 1s NWN M @Vi [ZZZ/E Nov. 16, 1943.

w. G. PLUMB 2,334,645

FOUR-SQUARE SHEET TRIMMING MACHINE Filed April '7, 1942 l8 Sheefs-Sheet i4 WC Zi/IM Nov. 16, 1943. w. e. PLUMB I FOUR-SQUARE SHEET TRIMMING MACHINE 1s SheetsSheet 15 Filed April 7, 1942 Mum Nov. 16, 1943. w, PLUMB 2,334,645

FOUR-SQUARE SHEET TRIMMING MACHINE Filed April 7, 1942 18 Sheets-Sheet l6 w. G. PLUMB POUR-SQUARE SHEET TRIMMING MACHINE Nov. 16, 1943.

Filed April '7, 1942 18 Sheets-Sheet 17 Nov. 16, 1943. w. e. PLUMB FOUR-SQUARE SHEET TRIMMING MACHINE Filed April '7, 1942 18 SheetsSheet l8 Patented Nov. 16, 1943 1 V V I 23345 45 T TA E U r 2,334,s45 FOURSQUABESHEET IMMIN AQ F i T Walter G. Rlumhffiidgewoodi'NiJ;,=asslgnor Continental Can Company, 1110;, New-York, i N. Y., aicorporation of New York 1 '3 Application Aipril 7, ieiasoriaino tiaslosv. w 5 V a e e I 56 Claims. (Cl.1 '6462) I v This invention relates generally to sheet trim- Another.object. ortned ention ,1 t ming mechanisms and primarily seeks to gprovide a first operation trimming equipment I a novel machine structure. to which generally character stated in which is included a novelarsquare sheets to. be trimmed can be fed and rangement of sheet feeding and gaging means wherein such sheets have edge portions trimmed including a lug-equipped chainior other suitable therefrom, first along two generally parallel sides sheet advancing meansa'nd laterally reciprocable Urf or ends, and then along the two remaining genside edge gages, -,sai d gages inc luding a single erallyparallel sides or ends, in such manner as roller engageable with thesheet edge atfone side to provide perfectlysquare sheets. v t and centered between two similarlyre'ciprocable It is well known that it is very difiicultto pro- 0 gage rollers'at theopposite sides, therebyto-lprovideperfectlysquaresheets, and .yet it is necesvide 3-point gaging contact wit sheets: there sary in the use ofmetal sheetsfor some purposes being included means for reciprocating th gages that the sheets be perfectly square. An example in timed relation. with the. advancing of the of such use is in the manufacture of crown'gcaps sheets so thatthe. gages will engage. the. sheet or similar articles whichrhave protective or edges prior. to contact of the sheets-withfthe decorative coatings thereon and are punched--by trimming cutters. and move ,out'of 1 contact with gang dies from metallic sheets. The protective saidsheets just after the edgetrimming cu tters or decorative coatings are applied-in symmethave engaged said. sheets and started their edge rically spaced relation on the sheetsbefore the rirnmin'gl function I gang die punching takes place, and it will be ob- Another object. of] the invention is. to provide vious that unless the sheets are perfectly square in a sheet edge gaging equipment ofgthe'char so that the spotting issymmetrically and very t e m.ea l r j t n he ateral accurately arranged within its borders, the spotp c g of the' as s, a dm ans i adjusting ting will be clipped during the subsequentgang the long tud na ly pa ed; ela o 10 ,the{.tw9 punching operations and wastage of sheets or rollers nclu nr h S- the provision of imperfectly punched units will n he O i Cfiofft I nllgg imli l l result. It is the purpose of the present inven- Sheet d gaging equi ment f h Char;- tion to provide a machine inwhich the sheets s a d/m a !Yi d b un the can be rendered perfectly square prior to opera- Single roller inc uded, 9 ofthe -gage sem tions of the nature stated so that the provision so that it canb displaced'lq y' s is tly qv of imperfect articles or unnecessary-wastage of Sheet e g d thereby. m'e ns'tq" lockgthe yieldsheets will be avoided. I ably'mounted rollerinitsfdisplaced position; and

An object of the invention is to provide a mameans to releasegth 10Ck Wh h Pa ula chinecf thecharacter stated wherein is emage set is next-retracted laterally. bodieda first-operation trimming unit onwhlch Another o t o e invention v oyi two generally parallel sides or ends of sheets in a machine of the character stated, .novel roare trimmed, and a, seb d: operation tri min tary sheet edge trimmingv cutters and associated unit onto which the sheets arefed from the im d Sc p pp n otors eifective to first operation unit in order to have theremainprevent bendingfind twisting a ayo flihescrap. ring generally parallel sides or ends trimmed, 40 Another object of the invention is f D TQ each said unit including a suitable framing in a-Inachine of thebharacteristatedfa'novel structure; and both said units being mounted arrangement of{ holddown nieansgengag'eable upon a common base, .one of the units being movover and 'efiecti've to prevent buckling offsheets' able toward or from the other. of the units in as they are being engaged by thega'ges and'movorder to alter the spaced relation of said units. ing toward and through the edgetrimming "cut- Another object of the invention is to provide ters.. t I a machine of the character stated in. which each Another objectof theinvention is to provide'in unit includes sheet feedingmeans, sheet gaging a machine ofthe character stated, novellfeed means, and sheet edge trimming means, a power roller equipments mounted on the edge trimming source, and driving connectionsnbetwe'en v the cutter shafts and including floatably mounted p wand s a ans, ther in rollers opposed to positively driven rollersjgand included in the power transmitting. connections efiective to prevent differential speed contact extensible parts effective to permit adjustment with the sheets which would be effective tomar of the relation of the two'units'withoutbrea h the same. t to ing the driving connections, I Anotherobjeot of the inventionis to provide l drop onto .themperationitr'imming unit table of sheets fed from the first operation trimming unit table. 7

Another object of the invention is toprovide in a second operation trimming unitpf'the-character stated, novel combined 'IHBtCQQiQPEdFChB-m and reciprocatory feeder M57101. advancin r the sheets between the gaging equipmentsandeto i the edge trimming cutters.

Another. object of the invention is' to provide a sheet advancing means in a second operation trimming unit of thecharacter stated in which meansis;providedforadjusting*the-reciprocatory feeding means relative to the chain feeding means. I

Anotherobjectof th invention is to-providein asecond "operationtrimming-unit; sheet advancing meansofjthecharacterstated,a'reciprocatory feeding-means which -is adjustable longitudinally inithe direction of sheetflnovement and which includes 'a reci'procatory "feeder dog an d endless chain means "for imparting reciprocatory movement togsaid iknother ooj'e ctof the invention is to provide a second operationitrimming-unit of the 'char'- actens'tated inwhieh isincluded novel sheet feed rectifying means comprising "two rectifier v,fingers r-a utment's nngageable "by the advance edge of each "advancing sheet just j ior to enga ement thereof with the edge trimming cutters, and novel me s aus ng thefingers to-move withzthe sheet 'to ,very accurately present thesam 'in par allel relation to the cutter axis .until the sheet as'b en n a ed andgr pnedibvthecutters and then to cause ,said fingers to accelerate .in .movement forwardlyand downwardly out of contact with theshee'tso .that the sheet ,can move thereover while-.thefingers are .beingreturned rearwardly .to .be again. moved .lipiinto position .for. intercepting and .moving. forwardly in rectifying contact. withthe next advancing sheet.

'witli'th i boveanjd other objectsinview which i more lull? -anpear, .the nature of .the ,inven tion will. bemoreclearly .understood by .following the description, the appended-claims and the several views illustrated :in .the accompanyin drawings.

.Inthedrawings:

ieu es .1 and .la joined .at the 1ine s,-A- B together comprise .a plan view of a machine =embedving the invention.

Figure ;.2.:is a left :side view looking at the second operation v portion of {the machine.

figure 3 .is a central i ine tudinal section :taken throu h the fi st tri ming po tion of e parts ,of the second operation trimming portion of the machine being broken away and shown :in vertical transverse section.

a ventical' cross section on the 4w! on Figure l, :pa/rts being broken any.

.5 .is a tm gmentar-y -ventiwl cross section takenontheflineL- S en-Eigu-re 4.

Figure 6 :is a fragmentary vertical 0 3 8 section illustrating the pressure applying ;means associated with one of the fioatably mounted feeding rolls.

Figure '7 is a fragmentary vertical longitudinal section illustrating one edge trimming cutter and scrap supporting equipment and one associated feed roll equipment.

Figure 8 is a fragmentary part vertical longitudinal section and part face view illustrating one of the=burring roll sets' andz'one associated set of thefeedawaylrolls forming a part oiithe first operation trimming unit.

,Figure 9 is a fragmentary vertical cross section illustratingtheyieldably mounted side gage and-itsn'rou nting on the first operation trimming Figure JO-is anenlarged detail vertical cross sectionztakemonthejline I0-l0 on Figure 9.

Figure 11 is an enlarged fragmentary horinQntal'sectiOntaKen on the line |-l l on Figure Figure 12 is an enlarged detail plan view of the sheet gaging'equipment at-the right-handside of the first operation-unit.

=Fi-gure I3 isanenlargeddetail vertical cross section taken on theline l3--I 3on Figure l2.

Figure 14 -is"-a detail view illustrating one of thegage-reciproeating levers.

Figu're 15 is -a detail plan view illustrating the yieldably mounted gage equipment at the left hand side of the second operation unit.

Figure lfi is :afdetail vertical longitudinal section 'taken onithe'line IS-1'6 on Figure 15.

Figure 17 is a detail horizontal section taken on the line 'l--l1'on Figure '16. 1

Figure 1-8 is adetail plan view illustrating-the gage equipmentat the right hand side of the second operation unit.

Figure 119-is a detail plan view illustrating the reciprocatory feeding means-employed in the'secon'd operation units, parts being brokenavvay and insection. I I

'ZFigure'ZO is-a eft side-elevation-of the reciprocatory feeding means shown in'Figure 19.

Figure 21 'is-a fragmentary :vertical cross sectionillu'strating in left side elevation the sheet rectifying finger equipment and the means for imparting 4-motion advancing and return movements thereto.

"Figure '22 is a detail longitudinal section through one of the rectifying fingers.

'--'Figure 23 is a vertical cross section taken through the axis of the main cam shaft on the second operation trimming unit, parts being broken away.

Figure 24 is a fragmentaryface view illustrating the rock shaft to which rocking movement is imparted for advancing and retracting the rectifying fingers and the mounting thereof.

' Figures 25 and 26 are fragmentary vertical cross sectional views illustrating the scrap diverting .means associated respectively with the edge trimming cutters of the first and second peration units.

Figure 27 is a fragmentary face view illustrating amodified form of feed ,roll and edge trimm ng cutter arran ement.

in the example of embodiment of theinvention herein disclosed, thereis included a first operatiQn mming unit mounted on .-.a suitable framin and enerally designated A, and a second on ation trimming-unit mounted on a suitable framing and generally designated B, both said units beingsupported on acommon base generally designated C. See Figures 1, 1a, 2 and 3 of the 75 drawings. 

